An ideal way to show an important induction, Application, Induction, the hand cranked rotor spins through an array of permanent magnets. The glowing of the included light bulb is its own reward, but other effcts are possible using a frosted tungsten lamp, the brightness of the lamp reflects the amount of current or substitute aneon glow lamp to see the alternative current case the lamp electrods to flash on and off alternately size 20x13cm base
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